Assume that government in a developing nation enables start-up some firms to manufacture at lower costs by building infrastructure (for example, power grids and transportation networks), as well as also facilitates learning-by-doing through building public schools to support literacy. When more firms enter the influenced industries, these industries are more probable to: (i) be constant cost industries. (ii) experience diseconomies of scale. (iii) be increasing cost industries. (iv) experience economies of scale. (v) be decreasing cost industries.
Please choose the right answer from above...I want your suggestion for the same.